§ Mr. William RossTo ask the Secretary of State for Northern Ireland what effects on steel reinforcing have been reported to him as a result of alkali silica reaction or alkali aggregate reaction in the concrete used for the construction of any public building, bridge, sewage works, or water impoundment dam in Northern Ireland.
§ Mr. Needham[holding answer 23 January 1990]: None.
§ Mr. William RossTo ask the Secretary of State for Northern Ireland whether any alkali silica reaction or alkali aggregate reaction has been reported in any concrete used in the construction of any building or other publicly or Government-funded construction now in public ownership in Northern Ireland.
§ Mr. Needham[holding answer 23 January 1990]: I am aware of only one concrete structure in public ownership in Northern Ireland with a problem which may have been caused by alkali aggregate reaction. The problem is not considered serious, but further investigations are being carried out.